Comedy
Dr Ciaccio (not a doctor) looks into new evidence from New Zealand about the last time the Earth's magnetic poles flipped around 42,000 years ago. Also a promising new technology can etch holograms onto foods, Slugs shed their heads (rather bodies) to get a fresh start and how diamonds made from the carbon in the atmosphere could be a climate boon. Finally we take a look and listen at the new data coming back from Mars.